package com.kun.mall.order.config;

import feign.RequestInterceptor;
import feign.RequestTemplate;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;

/**
 * @author fangkun
 * @create 2023-03-24-16:16
 */
@Configuration
public class MallFeignConfig {

    @Bean
    public RequestInterceptor requestInterceptor(){
        return new RequestInterceptor() {
            @Override
            public void apply(RequestTemplate requestTemplate) {
                //从RequestContextHolder拿到刚进来的请求
                ServletRequestAttributes requestAttributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();

                if (requestAttributes != null){
                    HttpServletRequest request = requestAttributes.getRequest();
                    //给新请求同步老的请求头信息（cookie）
                    if (request != null){
                        String cookie = request.getHeader("Cookie");
                        requestTemplate.header("Cookie",cookie);
                    }
                }

            }
        };
    }
}
